Patents by Inventor Chang-Hao Tai

Chang-Hao Tai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing a laminated composite of condensation type silicone rubber and polyurethane by induce surface reconstruction
    Patent number: 6358455
    Abstract: Induced surface reconstruction of silicone rubber by blending silicone gel reactants with a modified and curing with a mold having high critical surface tension was used to improve the adhesion of chemically inert silicone rubber to polyurethane. The modifier has the following formula wherein m=25˜50; R1, R2, R3, R4, R11 and R12 independently are alkyl; R′ is R or OR, wherein R is a polymer backbone having a molecular weight of 1000˜20000. The mold is formed with a material having a critical surface tension greater than that of a polymer having a repeating unit of said R.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: March 19, 2002
    Assignee: Chung-Shan Institute of Science & Technology
    Inventors: Ming-Fu Tsai, Yu-Der Lee, Yong-Chien Ling, Wen-Hsiung Ku, Chang-Hao Tai